# Calcium/Vitamin D, Biomarkers & Colon Polyp Prevention

> **NCT00399607** · — · COMPLETED · sponsor: **Emory University** · enrollment: 264 (actual)

## Conditions studied

- Colorectal Adenomatous Polyps

## Interventions

- **PROCEDURE:** Rectal biopsy during colonoscopy
- **PROCEDURE:** Rectal biopsy at randomization
- **PROCEDURE:** Rectal biopsy at 1 year
- **PROCEDURE:** Rectal biopsy prior to colonoscopy
- **PROCEDURE:** Biopsies during colonoscopy

## Key facts

- **NCT ID:** NCT00399607
- **Lead sponsor:** Emory University
- **Sponsor class:** OTHER
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** COMPLETED
- **Start date:** 2006-06
- **Primary completion:** 2016-02
- **Final completion:** 2016-08
- **Target enrollment:** 264 (ACTUAL)
- **Last updated:** 2016-12-08

## Collaborators

- [object Object]

## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT00399607

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT00399607, "Calcium/Vitamin D, Biomarkers & Colon Polyp Prevention". Retrieved via AI Analytics 2026-06-01 from https://api.ai-analytics.org/clinical/NCT00399607. Licensed CC0.

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*[Clinical trials dataset](/datasets/clinical-trials) · CC0 1.0*